Hello Denver1,
Thank you for reaching out with your question about the Nest Thermostat battery. Your curiosity is appreciated. The battery in a Nest Thermostat is typically located on the back of the device. To access it, you'll need to remove the thermostat from its base.
Please note that not all Nest Thermostat models have user-replaceable batteries, as some are designed to be powered through the HVAC (Heating, Ventilation, and Air Conditioning) system and a built-in battery. Tell us the type of Nest Thermostat you have, and I can offer more detailed instructions.
Feel free to ask if you have any further questions or need additional assistance with your Nest Thermostat.
Best regards,
Mark
